package com.scau.classOnline.dao;

import com.scau.classOnline.entity.File;

/**
 * Create by ji on 2019-07-11
 */
public interface FileMapper {

    File selectByPrimaryKey(Integer id);

    int insert(File file);

    int updateByPrimaryKey(File file);

    int deleteByPrimaryKey(Integer id);
}
